iii sem. ba economics - core course - quantitative methods for economic analysis - 1

School of Distance Education

Quantitative Methods for Economic Analysis - 1 Page 1

UNIVERSITY OF CALICUTSCHOOL OF DISTANCE EDUCATION

III SEMESTER

B.A ECONOMICS(2013 ADMISSION)

CORE COURSEQuantitative Methods for Economic Analysis - 1

(EC3 B03)1. The following integers were obtained as the number of visits to a gift shop, per hour, overseveral days.

the mean of the above data, to 2 decimal places.a) 2.80b) 3.00c) 2.81d) 2.8

2. Age is classified asa) nominal datab) ordinal datac) interval datad) ratio data

3. You are conducting a survey of the people of India to find out how popular football isamong the Indians. You randomly choose people to call, and make 1,000 phone calls topeople scattered across the country. In this study, what of the following statement is true

a) Both the people of India and the people you called is the populationb) The people of India is called the population, and the people you called are the sample.c) The people of India is the sample, and the people you called is the population.d) Both the people of India and the people you called are samples.

0, 2, 3, 1, 2, 4, 5, 2, 3, 4,2, 3, 3, 5, 6, 2, 1, 4, 1, 4,3, 1, 6, 2, 1, 4, 5, 2, 3, 3,1, 2.



4. A _____ refers to the group in your study whereas a ______ refers to a distinct group ofpeoplea) population; sampleb) sample; populationc) sample; cohortd) participant; population

5. Under what circumstances should we be cautious about using the mean as a measure ofcentral tendency?a) When the data is skewed.b) When data is positively skewedc) When data is negatively skewedd) All of the above

6. If b = 0 the line of best fit will conventionally be drawn ______a) as horizontalb) as verticalc) as provides the best fit to the scoresd) through the middle of the data points

7. Linear regression can achieve which of the followinga) Allow us to predict someones statistical grade from their mathematical abilityb) Allow us to identify how much variable y will change if variable x changesc) Allow us to predict that as the weather gets 30% colder, then the sales of sweaters willincrease by 50%.d) All of the above

8. Linear regression means that every time the value of x increases, y changes by a______amount.a) increasingb) decreasing

c) constantd) all of the above

9. In regression, the variable being predicted is called thea) criterion or y variableb) predictor variable or x

c) xd) explanatory variable

10. Which of the following is incorrecta) In linear regression a real line is drawn through the data points where total error isminimized.b) In linear regression the line tells us by how much y is predicted to change as a result of achange in x.c) In linear regression the line fits the data in the best place possible.d) In linear regression the line of best fit maximises the distance between the scores and theregression line.



11. A correlation coefficient of +0.40 could be considereda) weakb) moderate

c) strongd) zero

12. The _________coefficient (r) is a ratio between the covariance (variance shared by twovariables) and a measure of the separate variances.a) regressionb) elasticity

c) correlationd) mean

13. In correlation, for a positive relationship ____ scores on one variable tend to beassociated with ____ scores on the other variablea) high; lowb) low; high

c) high; highd) none of the above

14. To construct a ________we take each persons score on x and y and plot where theymeet. Each data point represents two scores.a) scatter diagramb) histogram

c) pie diagramd) ogive

15. When two variables are correlated we can saya) that they have a perfect positiverelationshipb) that they share variance

c) high scores are frequent on x and yd) that they are independent

16. Which of the following could be value of correlation coefficienta) 0.30b) +1.00

c) 0.27d) All of the above

17. In correlation, which of the following tells us that we have a perfect positive relationshipa) r = +1b) All the points on the scatter diagram would fall on a straight line and the slope would befrom bottom left to top right of the plotc) The dots on the scatter diagram would fall in a straight line from top left-hand corner downto bottom right hand cornerd) Both a and b

18. You have a correlation coefficient of 0.45 between two variables. How much variancewould these two variables (to the nearest whole number) share, in percentage termsa) 16%b) 67%

c) 25%d) 20%

19. A teacher surveys the students attending a seminar and finds that 20% are I BA studentsand 45% are II BA students. This is an example ofa) descriptive statisticsb) inferential statistics

c) secondary datad) nominal data



20. Which of the following does not represent one method to obtain primary source dataa) making observationsb) sending a survey to customers

c) looking in journalsd) conducting an experiment

21. The grades that a random sample of BA students received over the last five years inQuantitative Techniques examinations represent what statistical concepta) the grades are a parameterb) the grades are a statistic

c) the grades are a sampled) the grades are a population

22. What method is used to sample a population so that it is representative of the populationa) samples are chosen at random from the populationb) every other element in a population is chosenc) all but the observations that have the lowest and highest values are selectedd) only the first half of a population is selected

23. An insurance agent earns a commission on each policy sold. This person made Rs.3,000in commissions during one month and concludes that annual compensation will be Rs.36,000. This is an example of:a) descriptive statisticsb) inferential statistics

c) secondary datad) nominal data

24. A student evaluation of teaching effectiveness for a particular course asks students torespond to their level of agreement with several statements according to the scale 1 =Strongly Agree, 2 = Agree, 3 = Neutral, 4 = Disagree, and 5 = Strongly Disagree. Theresponses indicate what level of measurement?a) ordinalb) ratio

c) nominald) interval

25. A company publishes data on its quarterly earnings for its stockholders to evaluate.Which of the following is truea) the source is primary for both the company and the stockholdersb) the source is secondary for both the company and the stockholdersc) the source is primary for the company and secondary for the stockholdersd) the source is secondary for the company and primary for the stockholders

26. If you have a digital weighing machine in your college that only reads in integers, is yourweight a discrete variablea) yes, because the scale reports integersb) no, because weight is still a continuous variable regardless of the ability to measure itc) it depends on the accuracy of the scaled) it depends on your weight

27. Information from a collection of samples may be used to draw conclusions about an entire________from which the sample data are drawn.a) populationb) sample

c) statisticd) parameter



28. Statistics is the study of _______ measures of the values associated with variablesa) verbalb) pictorial

c) descriptived) numerical

29. Primary source data is better than secondary source data. This statement isa) trueb) false

c) neither true nor falsed) any of the above

30. Celsius and Fahrenheit temperature scales are examples of interval levels of measurementa) trueb) false


31. The number of students on a college campus is a continuous variablea) trueb) false


32. ______refer to population characteristics while _____describe sample characteristicsa) statistic, parameterb) parameter, statistic

c) regression, correlationd) correlation, regression

33. Gender is categorized as____dataa) nominalb) ordinal

c) intervald) ratio

34. You are conducting a study to see whether a new experimental medication will cause baldmen to grow hair. You divide your patients into 2 groups. To one group you give themedication. To the other group, you give a placebo. In this study, the correct terms for thetaking of the medication and the growth of hair are the following.a) Both the medication and the hair growth are dependent variablesb) Both the medication and the hair growth are independent variablesc) the medication is the dependent variable, and the hair growth is the independent variabled) the medication is the independent variable, and the hair growth is the dependent variable

35. Which of the following definitions is the definition of the MODE?a) the Mode is the value that has the highest frequencyb) the Mode is the average calculated by adding up all the values and dividing by the numberof entriesc) the Mode is the largest valued) the Mode is the value that half of the entries are below and half of the entries are above.

36. The concept of a variable implies that the values of every characteristic of an item aredifferenta) trueb) false




37. Which of the following definitions is the definition of the MEANa) the Mean is the largest valueb) the Mean is the value that half of the entries are below and half of the entries are abovec) the Mean is the value that has the highest frequencyd) the Mean is the average calculated by adding up all the values and dividing by the numberof entries

38. Which of the following definitions is the definition of the MEDIAN?a) The Median is the value that half of the entries are below and half of the entries are aboveb) the Median is the value that has the highest frequencyc) the Median is the largest valued) the Median is the average calculated by adding up all the values and dividing by thenumber of entries.

39. What is the median of the following set of numbers?{12,8,13,4,7,6,3,3,15}a)12b) 8

c) 7d)7.5

40. What is the mode and the mean for the following set of numbers?{4,9,8,2,16,4,4,8,9,6}a) mean = 7, mode =8b)mean = 7, mode =4

c) mean = 6, mode =8d) mean = 8, mode =9

41. The first step in the formation of a frequency table isa) choosing a suitable size or width of class intervalsb) establishing the boundaries of each class intervalsc) deciding an appropriate number of class groupingsd) classifying the data into the appropriate classes

42. A teacher had 5 students who took a test. Their test scores are as follows: 62, 86, 72, 66,72. What is the mode of the testa) 72b) 86

c) 62d) 86

43. The mean in the following numbers is _______:19, 21, 18, 17, 18, 22, 46a) 17b)16

c)19d) 23

44. When calculating median of data set, the first step is:a) calculate the mean of two middle items in the data setb) arrange the data in ascending or descending orderc) determine the relative weights of data values in terms of importanced) find the total



45. Students A,B and C took part in a recent quiz. Student A scored 50 points, Student Bscored 60 points and Student C scored 70 points. What is the mean of this quiza) 60b)50

c)70d) 45

46. Which of the following statement is not correct in respect of the range as a measure ofdispersiona) only two points in the data set determines itb) it is affected by extreme valuesc) there may be considerable change in it from one sample to anotherd) it is difficult to calculate

47. Contestants of a competition have reached the semi-finals. After the semi-finals, theirscore are of below. Those whose score is lower than the median will not be able to enter thefinals, so who managed to enter the finals. Here is the list of contestants: Anoop - 70 Points,Babu - 50 Points, Cindu - 65 Points, Das - 90 Points, Emy - 55 Points, Fasna - 85 Points,Gopi - 100 Pointsa) Babu, Cindu and Emyb) Anoop, Das, Fasnn and Gopi

c) Anoop, Babu, Cindu and Emyd) Babu, Cindu, Das, Gopi

48. What is the median in the following numbers: 19, 21, 18, 17, 18, 22, 46a) 19b) 18

c) 17d) 21

49. In a symmetrical series:a) mode > meanb) mean > median

c) mean < moded) mean = mode = median

50. A teacher had 5 students who took a test. Their test scores are as follows: 62, 86, 72, 66,72. What is the mode of the testa) 72b) 86

c) 62d) 66

51. Find the range in the following numbers: 9, 8, 15, 8, 20a) 12b) 15

c) 8d) 20

52. The scores of a cricketer in eight one day matches is 36, 38, 33, 34, 32, 30, 34, 35. Whatis his average scorea) 45b) 35

c) 38d) 34

53. For the following distribution which of the following statement is true36, 38, 33, 34, 32, 30, 34, 35a) median > mean < modeb) median > mean = mode

c) median = mean < moded) median = mean = mode



54. Students A,B and C took part in a recent quiz. Student A scored 50 points, Student Bscored 60 points and Student C scored 70 points. What is the mean of this quiza) 60b) 50

c) 70d) 45

55. Which of the following statements describes Statistics most appropriatelya) statistics is the science of counting.b) statistics is the science of averages.c) statistics is concerned with the collection, presentation and analysis of data leading to validconclusions.d) statistics is the aggregate of facts

56. Which of the curves is more peaked than the normal curve?a) Mesokurticb) Platykurtic

c) Lapokurticd) Skewness

57. What will be the range of "r" when we find that the dependent variable increases as theindependent variable increasesa) 0 to -0.05b) 1 to 2

c) 0.1 to 1d) 2 to 3

58. When the two regression lines coincide, then r value isa) 0b) 1

c) 0.5d) 1

59. When the correlation coefficient between x and y is positive, then as variable x decreases,variable ya) decreasesb) increases

c) remains the samed) changes linearly

60. Which of the following correlation coefficients shows the highest degree of associationa) 1b) 1

c) 0.9d) both a & b

61. The sum of deviations taken from arithmetic mean isa) minimumb) zero

c) maximumd) none of the above is possible

62. Which of the following statements is not correcta) extreme value in data affects the meanb) mean is also known as averagec) some data sets do not have meand) at times weighted mean is much better than the simple mean



63. Which of the following is not true in respect of mean deviationa) it is simple to understandb) it considers each & every item in a seriesc) it is capable of further algebraic treatmentd) the extreme items have less effect on its magnitude

64. What is the purpose of a summary table?a) to see differences between or among categoriesb) to list data to create a bar or pie chartc) this is the only way to present categorical data in numerical formd) to sum the values of responses to a survey

65. A graphical representation of a frequency distribution is called a__________________

a) scatter diagramb) histogram

c) time-series plotd) stem-and-leaf plot

66. The width of a class interval in a frequency distribution (or bar chart) will beapproximately equal to the range of the data divided by the ______________ .a) highest value in the data setb) average of the data set

c) lowest value in the data setd) number of class intervals

67. When constructing a frequency distribution, which of the following rules must befollowed?a) the midpoint of each class must be an integerb) the width of each class is equal to the lowest value in the data setc) the number of classes must be an even numberd) adjacent classes cannot overlap

68. The rule of thumb for creating a frequency distribution is to divide the data into 5-15classes. While larger numbers of classes allow for larger data sets, how do you know exactlyhow many classes to usea) if in doubt about the number of classes, select 10 since it is the midpoint between 5 and 15classesb) select the number of classes that provides definition to the shape of the datac) determine the width of the class interval, then calculate the number of classesd) any number of classes between 5 and 15 is sufficient

69. Considering the various types of tables and charts you have studied, which table, chart,diagram or plot would you use to depict categorical data for two variables in a visual formata) bar chartb) pie chart

c) scatter plotd) contingency table

70. For the list of values, 13, 18, 13, 14, 13, 16, 14, 21, 13, the mean, median, mode, andrange are in the ordera) 15, 13, 14, 8b) 15, 14, 13, 8

c) 8, 15, 14, 13d) 14, 15, 13, 8



71. A student has gotten the following grades on his tests: 87, 95, 76, and 88. He wants an 85or better overall. What is the minimum grade he must get on the last test in order to achievethat averagea) 76b) 85

c) 87d) 79

72. Arrange the numbers in numerical order and see which is repeated most often. Thisdescribes which measure of central tendencya) meanb) median

c) ranged) mode

73. The cumulative frequency for a particular class is equal to 35. The cumulative frequencyfor the next class will be _________________a) less than 35b) equal to 65

c) 35 minus the next class frequencyd) 35 plus the next class frequency

74. Which of the following would be most helpful in the construction of a pie charta) cumulative percentagesb) ogive

c) relative frequenciesd) frequency distribution

75. The highest bar in a histogram representsa) the class with the lowest relative frequencyb) the class with the lowest frequencyc) the class with the highest frequencyd) the class with the highest cumulative frequency

76. The movie theater industry tracks ticket sales by age groups. A _______would provide anappropriate representation for the proportion of ticket sales attributed to each age group.a) ogiveb) line graph

c) scatter diagramd) pie chart

77. You are constructing a histogram that is required to use 6 classes for a data set that rangesfrom 15 to 70. A class width of ____ units would be an appropriate choicea) 9b) 10

c) 15d) 6

78. A _______ would be an effective tool to assess the relationship between the grade earnedin a class and the number of hours spent studyinga) scatter diagramb) bar chart

c) histogramd) pie chart

79. How might an extreme value in the sample data set affect the value of the meana) an extreme value cannot affect the mean if it is close to the meanb) all values are treated equally when determining the mean, so an extreme value cannotaffect itc) since all values are summed, any extreme value can influence the mean to a large extentd) one extreme value is still only one value, so it cannot affect the mean very much



80. Which of the following is not a measure of central tendencya) interquartile rangeb) median

c) moded) geometric mean

81. Which of the following is the most appropriate measure of central tendency for ordinaldataa) coefficient of Variationb) variance

c) mediand) mean

82. Which of the following measures of central tendency is not affected by extreme values inthe sample data seta) modeb) median

c) median and moded) mean

83. How many elements of a data set are between the first and third quartilesa) one halfb) one third

c) one fourthd) three fourths

84. Which of the following measures become larger as the data is more disperseda) median and rangeb) mean, variance, and standard deviationc) mean and mediand) range, variance, and standard deviation

85. The sum of deviations about the arithmetic mean is always equal to _______a) 1b) 0

c) varianced) geometric mean

86. The coefficient of correlation will be a value in which of the following rangesa) (0, 1)b) (1, 1)

c) (1, 0)d) (infinity, +infinity)

87. How is the arithmetic mean related to the variancea) variance has the square of the mean in its formulab) variance is not related to the mean, but standard deviation isc) variance measures the variability of values about the meand) they are not related. One is a measure of central tendency, and the other is a measure ofvariance

88. Summary statistics for two samples of data areSample 1: mean=19 variance=10Sample 2: mean=10 variance=19 Which sample has the larger spread of observationsa) sample 2b) sample 1c) neither; they have the same spread

d) there is not enough information to answerthe question



89. Consider the 3 observations 3,7,11 for which the mean is 7 and the standard deviation is4. If we add 2 to each value, what are the new mean and standard deviationa) the mean is 9 and the standard deviation is 2b) the mean is 9 and the standard deviation is 4c) the mean is 7 and the standard deviation is 4d) the mean is 7 and the standard deviation is 6

90. Why use samples rather than the entire populationa) selecting a sample is less time-consuming than using every item in the populationb) an analysis based on a sample is more practical than an analysis of the populationc) selecting a sample is less costly than using every item in the populationd) all of the above reasons justify statistical sampling procedures

91. Which of the following sampling techniques will not result in a probability sample?a) stratifiedb) quota

c) randomd) systematic

92. A student is collecting data for a project from a list of 300 agricultural loan beneficiariesgiven by a bank. The student constructs a sampling procedure that will begin with the 7thperson in the list and collect every 10th person thereafter (17th, 27th, etc.). This procedureresults in which of the following types of samplesa) simple randomb) convenience

c) systematicd) stratified

93. The standard deviation of a sampling distribution is commonly called which of thefollowinga) sampling deviationb) standard margin

c) standard errord) statistical range

94. Which of the following techniques yields a simple random samplea) choosing volunteers from an introductory psychology class to participateb) listing the individuals by ethnic group and choosing a proportion from within each ethnicgroup at randomc) numbering all the elements of a sampling frame and then using a random number table topick cases from the tabled) randomly selecting schools, and then sampling everyone within the school

95. People who are available, volunteer, or can be easily recruited are used in the samplingmethod called ______a) simple random samplingb) cluster samplingc) systematic samplingd) convenience sampling



96. Which of the following types of sampling involves the researcher determining theappropriate sample sizes for the groups identified as important, and then taking conveniencesamples from those groupsa) proportional stratified samplingb) quota sampling

c) one-stage cluster samplingd) two-stage cluster sampling

97. In which of the following nonrandom sampling techniques does the researcher ask theresearch participants to identify other potential research participantsa) snowballb) convenience

c) purposived) quota

98. The type of sampling in which each member of the population selected for the sample isreturned to the population before the next member is selected is called _________a) sampling without replacementb) sampling with replacement

c) simple random samplingd) systematic sampling

99. Which of the following is not a type of nonrandom samplinga) cluster samplingb) convenience sampling

c) quota samplingd) purposive sampling

100. ___________ is a set of elements taken from a larger population according to certainrulesa) sampleb) population

c) statisticd) element

101. In an interview schedule to collect data from public, as response categories to thequestion What is your age the following are given. 1-5, 5-10, 10-20, 20-30, 30-40. What isthe problem(s) with thisa) the categories are not mutually exclusiveb) the categories are not exhaustivec) both a and b are problemsd) there is no problem with the above set of response categories

102. Questionnaires can address events and characteristics taking place ______a) in the past (retrospective questions)b) in the present (current time questions)c) in the future (prospective questions)d) all of the above

103. Which of the following terms best describes data that were originally collected at anearlier time by a different person for a different purposea) primary datab) secondary datac) experimental datad) field notes



104. Which of the following is true concerning observation method of data collectiona) it takes less time than self-report approachesb) it costs less money than self-report approachesc) it is often not possible to determine exactly why the people behave as they dod) all of the above

105. Correlation refers toa) the causal relationship between two variablesb) the association between two variablesc) the proportion of variance that two variables shared) a statistical method that can only be used with a correlational research design

106. If two variables are highly correlated, what do you knowa) that they always go togetherb) that high values on one variable lead to high values on the other variablec) that there are no other variables responsible for the relationshipd) that changes in one variable are accompanied by predictable changes in the other

107. A researcher finds a correlation of 0.40 between personal income and the number ofyears of college completed. Based upon this finding he can conclude thata) a person who attended four years of college will have an annual income of Rs. 40,000b) more years of education causes higher incomec) personal income is a positively skewed variabled) more years of education are associated with higher income

108. Which of the following would not allow you to calculate a correlation?a) a negative relationship between X and Yb) a positive relationship between X and Yc) a curvilinear relationship between X and Yd) a linear relationship between X and Y

109. Correlation relates the relative position of a score in one distribution toa) the relative position of a score in another distributionb) the mean of the z-scores from another distributionc) the total variance of all scores in both distributionsd) the standard deviation of the z-scores for both distributions

110. If a positive correlation exists between height and weight, a person with above averageheight is expected to have above average weighta) trueb) falsec) insufficient information to draw a conclusiond) all of the above



111. Regression analysis:a) measures the demand for a goodb) measures growthc) establishes cause and effectd) establishes a relationship between two variables

112. In the equation of a straight line, Y = mX + c the term, m is the:a) independent variableb) intercept

c) dependent variabled) slope

113. In the equation of a straight line, Y = mX + c , if c is equal to zero then:a) the line of best fit passes through the originb) the line of best fit cuts the X axis to the right of the Y axisc) does not cross the X axisd) the line of best fit cuts the X axis to the left of the Y axis

114. In the equation of a straight line, Y = mX + c , if m is equal to 2 then:a) there is a positive relationship between the two variablesb) there is no relationship between the two variablesc) there is a negative relationship between the two variablesd) the relationship between the two variables is perfect

115. In the equation of a straight line, Y = mX + c , if m is equal to zero then when:a) X increases Y decreasesb) Y increases X increases

c) X increases Y increasesd) X increases Y remains constant

116. If the Pearson correlation co-efficient R is equal to 1 then:a) there is a perfect positive relationship between the two variablesb) there is a positive relationship between the two variablesc) there is no relationship between the two variablesd) there is a negative relationship between the two variables

117. The mathematical notation R2 is for:a) the Co-efficient of Determinationb) the Co-efficient of Variationc) Spearmans Co-efficient of Rank Correlationd) Pearsons Co-efficient of Correlation

118. If R2 is calculated to be 0.98 how confident would you be in using the line of best fit forpredictiona) the relationship is random and thus cannot be predictedb) the relationship is too weak to predictc) very confidentd) not confident



119. If the slope of the regression line is calculated to be 2.5 and the intercept 16 then thevalue of Y when X is 4 is:a) 16b) 66.5c) 2.5d) 26

120. If Spearmans co-efficient of rank correlation is equal to one, then:a) all the total variation is explained by the regression lineb) the rankings of the two variables partially agreec) the rankings of the two variables is totally differentd) the rankings of the two variables totally agree

121. The correlation coefficient is used to determine:a) a specific value of the y-variable given a specific value of the x-variableb) a specific value of the x-variable given a specific value of the y-variablec) the strength of the relationship between the x and y variablesd) none of these

122. If there is a very strong correlation between two variables then the correlationcoefficient must bea) any value larger than 1b) much smaller than 0, if the correlation is negativec) much larger than 0, regardless of whether the correlation is negative or positived) none of these alternatives is correct

123. In regression, the equation that describes how the response variable (y) is related to theexplanatory variable (x) is:a) the correlation modelb) the regression modelc) used to compute the correlation coefficientd) None of these alternatives is correct

124. Regression modelling is a statistical framework for developing a mathematical equationthat describes howa) one explanatory and one or more response variables are relatedb) several explanatory and several response variables response are relatedc) one response and one or more explanatory variables are relatedd) all of these are correct

125. A ______ is a value that may change within the scope of a given problem or set ofoperationsa) constantb) variable

c) functiond) exponent



126. __________ variable is a factor that is not itself under study but affects the measurementof the study variables or the examination of their relationships.a) exogenousb) endogenousc) extraneousd) dependent

127. An index number is used:a) to measure changes in quantityb) to measure changes in demandc) to measure changes in a variable over timed) to measure changes in price

128. The ratio of a new price to the base year price is called the:a) price absoluteb) price decreasec) price increased) price relative

129. A simple aggregate quantity index is used to:a) measure the change in price of a productb) measure the change in quantity of a productc) measure the overall change in quantity of a range of productsd) measure the overall change in price of a range of products

130. A simple aggregate price index:a) ignores relative quantitiesb) compares relative quantities to relative pricesc) considers relative quantitiesd) compares absolute prices to absolute quantities

131. This index measures the change from month to month in the cost of a representativebasket of goods and services of the type bought by a typical householda) Paasche Price Indexb) Retail Price Indexc) Laspeyres Price Indexd) Financial times Index

132. The Laspeyres and Paasche index are examples of:a) Weighted price index onlyb) Aggregate index numbersc) Weighted index numbersd) Weighted quantity index only



133. The Laspeyres price index:a) regards the current year quantities as fixedb) regards the base year quantities as fixedc) regards the base year prices as fixedd) regards the current quality as fixed

134. A scaling factor is used to:a) change a simple index to a weighted indexb) convert the Paasche index to a Laspeyres indexc) change an aggregate index to a weighted indexd) change the base year

135. The distinctive feature of the ______ index is that it uses a group of commoditiespurchased in the base period as the basis for comparisona) Paaschesb) Laspeyresc) Fishersd) Dorbish-Bowley

136. ________was developed to measure changes in the cost of living in order to determinethe wage increases necessary to maintain a constant standard of living.a) Price indexb) Sensex

c) Correlationd) Regression

137. ____________ measure of living costs based on changes in retail pricesa) Correlationb) Whole sale price index

c) Consumer price indexd) Regression

138. Paasche index was developed by ______economist Hermann Paasche for measuringcurrent price or quantity levels relative to those of a selected base perioda) Americanb) British

c) Australiand) German

139. The ratio-moving-average procedure can be used to deseasonalize dataa) trueb) false

c) either of the aboved) none of the above

140. The weighing factor, used in the exponential smoothing method, is always a numberbetween ______a) zero and tenb) five and ten

c) zero and oned) zero and negative one

141. A moving average of a time series is the value around which a series moves over time.a) trueb) false




142. In a time series analysis it is often important to analyze seasonal variationsa) trueb) false


143. The index number for the price of a good in 2002 was 142 and in 2003, it was 148.5, ona base year of 1994. What is the percent increase in price of gasoline from 2002 to 2003a) 4.377%b) 4.577%

c) 95.62%d) 6.5%

144. Which one of the following is not a component of the multiplicative time series model?a) trendb) irregular variation

c) regression trendd) seasonality

145. Which of the following is not a component of the multiplicative time series model?a) trend analysisb) seasonal variation

c) cyclical variationd) regressive variation

146. Demand for seats in a university is at its highest in the fall; demand also tends to growand fall off in 25-year waves. In time-series forecasting, the former demand characteristicwould be called __________ and the latter would be called __________a) Seasonality: cyclicalityb) Cyclicality; seasonality

c) Variability: randomalityd) Randomality; seasonality

147. The time series component that indicates a steady increase or decrease over time isknown as a ____________a) orderb) pattern

c) trendd) seasonality

148. A pattern in a times-series model that occurs over a duration of more than a year iscalled a ___________ variationa) trendb) seasonal

c) cyclicald) regressive

149. Which two components are smoothed out by the moving averagea) seasonality and irregularb) cyclicality; seasonality

c) variability: randomalityd) randomality; seasonality

150. If a value is missing in a time series we can do one of the followinga) just copy the previous valueb) estimate it as an average between two neighbouring valuesc) take the overall mean as the best estimate of itd) ignore it

151. One of the classifications of time series is that they can be eithera) categorical or ordinalb) stationary or non-stationary

c) inflationary or non-inflationaryd) increasing or decreasing



152. Another name for the regression method isa) linear methodb) univariate method

c) time series methodd) causal method

153. Exponential smoothing isa) a method to use number exponents to smooth the time seriesb) one of the forecasting methodsc) a method of testing linearityd) a method to find elasticity

154. Sensex is related toa) BSEb) NSE

c) RBId) SEBI

155. Time-series analysis is based on the assumption thata) random error terms are normally distributedb) there are dependable correlations between the variable to be forecast and otherindependent variablesc) past patterns in the variable to be forecast will continue unchanged into the futured) the data do not exhibit a trend

156. Which of the following is not one of the four types of variation that is estimated in time-series analysisa) predictableb) trend

c) cyclicald) irregular

157. The cyclical component of time-series data is usually estimated usinga) linear regression analysisb) moving averages

c) exponential smoothingd) qualitative methods

158. In time-series analysis, which source of variation can be estimated by the ratio-to-trendmethoda) cyclicalb) trend

c) seasonald) irregular

159. If regression analysis is used to estimate the linear relationship between the naturallogarithm of the variable to be forecast and time, then the slope estimate is equal toa) the linear trendb) the natural logarithm of the rate of growthc) the natural logarithm of one plus the rate of growthd) the natural logarithm of the square root of the rate of growth



160. The use of a smoothing technique is appropriate whena) random behaviour is the primary source of variationb) seasonality is presentc) data exhibit a strong trendd) all of the above are correct

161. Barometric methods are used to forecasta) seasonal variationb) secular trend

c) cyclical variationd) irregular variation

162. A single-equation econometric model of the demand for a product is a ________equation in which the quantity demanded of the product is an ________ variablea) structural, exogenousb) structural, endogenous

c) definitional, exogenousd) definitional, endogenous

163. Econometric forecasts requirea) accurate estimates of the coefficients of structural equationsb) forecasts of future values of exogenous variablesc) appropriate theoretical modelsd) all of the above

164. Laspeyre's formula does not obeya) Factor Reversal Testb) Time Reversal Test

c) Circular Testd) None

165. P10 is the index for timea) 1 on 0b) 0 on 1

c) 1 on 1d) b) 0 on 0

166. Fisher's Ideal Formula for calculating index nos. satisfies the________ testsa) Units Testb) Factor Reversal Test

c) Both a and bd) do not satisfy any test

167. _______________ is particularly suitable for the construction of index nosa) Harmonic Meanb) Arithmetic Mean

c) Geometric Meand) None

168. The________ of group indices given the General Indexa) Harmonic Meanb) Arithmetic Mean

c) Geometric Meand) None of the above

169. In computing Index Numbers, ___________ is concerned with the measurement of pricechanges over a period of years, when it is desirable to shift the basea) Unit Testb) Circular Test

c) Time Reversal Testd) None of the above



170. Index nos. are often constructed from thea) frequencyb) class

c) sampled) none

171. The formula should be independent of the unit in which or for which price and quantitiesare quoted ina) Unit Testb) Time Reversal Test

c) Factor Reversal Testd) None of the above

172. Factor Reversal test is satisfied bya) Fisher's Ideal Indexb) Laspeyres Index

c) Paasches Indexd) none of the above

173. The index no. is a special type of averagea) Falseb) True

c) Bothd) None

174. Laspeyre's method and Paasche's method do not satisfya) Unit Testb) Time Reversal Test

c) Factor Reversal Testd) None of the above

175. We use price index numbersa) to measure and compare pricesb) to measure prices

c) to compare pricesd) None of the above

176. Simple aggregate of quantities is a type ofa) quantity controlb) quantity indices

c) bothd) none of the above

177. The test of shifting the base is calleda) Unit Testb)Time Reversal Test

c) Circular Testd) None of the above

178. Price relative is equal toa) b)

c) 100d) 100

179. The price relative is a price index that is determined bya) (price in period t/base period price)(100)b) (base period price/price in period t)(100)c) (price in period t + base period price)(100)d) none of the above



180. A composite price index based on the prices of a group of items is known as thea) Laspeyres Indexb) Paasche Index

c) aggregate price indexd) Consumer Price Index

181. A weighted aggregate price index where the weight for each item is its base periodquantity is known as thea) Paasche Indexb) Consumer Price Index

c) Producer Price Indexd) Laspeyres Index

182. A monthly price index that uses the price changes in consumer goods and services formeasuring the changes in consumer prices over time is known as thea) Paasche Indexb) Consumer Price Index

c) Producer Price Indexd) Laspeyres Index

183. A monthly price index that measures the changes in the prices of goods sold in a primarymarket is known as thea) Consumer Price Indexb) quantity index

c) Index of Industrial Productiond) Producer Price Index

184. A composite price index where the prices of the items in the composite are weighted bytheir relative importance is known as thea) price relativeb) weighted aggregate price index

c) Consumer Price Indexd) none of the above

185. An index that is designed to measure changes in quantities over time is known as thea) time indexb) quantity index

c) Paasche indexd) change index

186. A quantity index that is designed to measure changes in physical volume or productionlevels of industrial goods over time is known as thea) physical volume indexb) time indexc) Index of Industrial Production and Capacity Utilizationd) none of the above

187. The term econometrics was coined bya) Marsahllb) Pawel

c) Ragnar Frischd) Pareto

188. Econometrics model is ___________modela) exogenousb) endogenous

c) identifiedd) either exogenous or endogenous

189. The starting point of econometric analysis isa) model specificationb) formulation of alternative hypothesis

c) formulation of null hypothesisd) collection of data



190. Regressor refers toa) independent variableb) dependent variable

c) error termd) dummy variable

191. In perfect linear model, we assume that regression coefficient remains _________a) variable until some pointb) variable through out

c) constant to some pointd) constant through out

192. In econometric models, t+1 indicates,a) net additionb) current value with some fluctuations

c) expected valued) none of these

193. When a north Indian town data and south Indian data are totalled, it leads to the problemof _________aggregation.

a) nationalb) regional

c) spatiald) heterogeneous

194. Among the following, which is an assumption of OLSa) the explanatory variables are measurableb) the relationship being estimated is identifiedc) error term and independent variables are relatedd) error term and independent variables are linearly related

195. The property of average or expected value is equal to true value of the coefficient is theproperty of

a) zero varianceb) minimum variance

c) zero meand) minimum mean

196. The power of a statistical test is defined as,a) 1b) 1 +

c) 1d)

197. Standard error is defined as,a) standard deviation of the sampling distributionb) standard deviation of the populationc) variance of the sampling distributiond) variance of the population

198. Student t test is preferred in the case of a,a) large sampleb) small sample

c) when sample is below 50d) when sample is above 50

199. Cobb Douglas production function is an example ofa) linear modelb) double log model

c) lin log modeld) log lin model



200. What is the meaning of the term heteroscedasticitya) The variance of the errors is not constantb) The variance of the dependent variable is not constantc) The errors are not linearly independent of one anotherd) The errors have non-zero mean

........................................

Answers1. (c) 2.812. (d) ratio data3. (b) The people of India is called the population, and the people you called are the sample4. (b) sample; population5. (d) All of the above6. (a) as horizontal7. (a) Allow us to predict someones statistical grade from their mathematical ability8. (c) constant9. (a) criterion or y variable10. (d) In linear regression the line of best fit maximises the distance between the scores andthe regression line11. (b) moderate12. (c) correlation13. (c) high; high14. (a) scatter diagram15. (b) that they share variance16. (d) All of the above17. (d) Both a and b18. (d) 20%19. (a) descriptive statistics (There is a rank to the grade level classification of students. Therefore, this data is ordinal.)20. (c) looking in journals21. (c) the grades are a sample22. (a) samples are chosen at random from the population23. (b) inferential statistics24. (a) ordinal25. (c) the source is primary for the company and secondary for the stockholders26. (b) no, because weight is still a continuous variable regardless of the ability to measure it27. (a) population28. (d) numerical29. (b) false30. (a) true31. (b) false Even though it is a relatively large number, the number of students on campus is discrete.32. (b) parameter, statistic33. (a) nominal34. (d) the medication is the independent variable, and the hair growth is the dependentvariable



35. (a) the Mode is the value that has the highest frequency36. (b) false37. (d) the Mean is the average calculated by adding up all the values and dividing by thenumber of entries38. (a) The Median is the value that half of the entries are below and half of the entries areabove39. (d)7.540. (c) mean = 6, mode =841. (c) deciding an appropriate number of class groupings42. (a) 7243. (d) 2344. (b) arrange the data in ascending or descending order45. (a) 6046. (d) it is difficult to calculate47. (b) Anoop, Das, Fasnn and Gerald48. (a) 1949. (d) mean = mode = median50. (a) 7251. (a) 1252. (d) 3453. (d) median = mean = mode54. (a) 6055. (c) statistics is concerned with the collection, presentation and analysis of data leading tovalid conclusions.56. (c) Lapokurtic57. (c) 0.1 to 158. (d) 159. (a) decreases60. (d) both a & b61. (b) zero62. (c) some data sets do not have mean63. (c) it is capable of further algebraic treatment64. (a) to see differences between or among categories65. (b) histogram66. (d) number of class intervals67. (d) adjacent classes cannot overlap68. (b) select the number of classes that provides definition to the shape of the data69. (a) bar chart70. (b) 15, 14, 13, 871. (d) 79 The student needs to get at least a 79 on the last test.72. (d) mode73. (d) 35 plus the next class frequency74. (b) ogive75. (c) the class with the highest frequency76. (d) pie chart



77. (b) 10 Using the class width to be the range divided by the number of classes, (70-15)/6 = 9.167.Therefore, a width of 10 is a more appropriate choice.78. (a) scatter diagram79. (c) since all values are summed, any extreme value can influence the mean to a large extent80. (a) interquartile range81. (c) median82. (a) mode83. (a) one half84. (d) range, variance, and standard deviation85. (b) 086. (b) (1, 1)87. (c) variance measures the variability of values about the mean88. (a) sample 289. (b) the mean is 9 and the standard deviation is 490. (d) all of the above reasons justify statistical sampling procedures91. (b) quota92. (c) systematic93. (c) standard error94. (c) numbering all the elements of a sampling frame and then using a random number tableto pick cases from the table95. (d) convenience sampling96. (b) quota sampling97. (a) snowball98. (b) sampling with replacement99. (a) cluster sampling100. (a) sample101. (c) both a and b are problems102. (d) all of the above103.( b) secondary data104. (c) it is often not possible to determine exactly why the people behave as they do105. (b) the association between two variables106. (d) that changes in one variable are accompanied by predictable changes in the other107. (d) more years of education are associated with higher income108. (c) a curvilinear relationship between X and Y109. (a) the relative position of a score in another distribution110. (a) true111. (d) establishes a relationship between two variables112. (d) slope113. (a) the line of best fit passes through the origin114. (c) there is a negative relationship between the two variables115. (d) X increases Y remains constant116. (a) there is a perfect positive relationship between the two variables117. (a) the Co-efficient of Determination118. (c) very confident119. (d) 26 Y = 4(2.5) + 16 = 26120. (d) the rankings of the two variables totally agree



121. (c) the strength of the relationship between the x and y variables122. (b) much smaller than 0, if the correlation is negative123. (b) the regression model124. (c) one response and one or more explanatory variables are related125. (b) variable126. (c) extraneous127. (c) to measure changes in a variable over time128. (d) price relative129. (d) measure the overall change in price of a range of products130. (a) ignores relative quantities131. (b) Retail Price Index132. (c) Weighted index numbers133. (b) regards the base year quantities as fixed134. (d) change the base year135. (b) Laspeyres136. (a) Price index137. (c) Consumer price index138. (d) German139. (a) true140. (c) zero and one141. (b) false142. (a) true143. (b) 4.577%144. (c) regression trend145. (d) regressive variation146. (a) Seasonality: cyclicality147. (c) trend148. (c) cyclical149. (a) seasonality and irregular150. (b) estimate it as an average between two neighbouring values151. (b) stationary or non-stationary152. (d) causal method153. (b) one of the forecasting methods154. (a) BSE155. (c) past patterns in the variable to be forecast will continue unchanged into the future156. (a) predictable157. (d) qualitative methods158. (c) seasonal159. (c) the natural logarithm of one plus the rate of growth160. (a) random behaviour is the primary source of variation161. (c) cyclical variation162. (b) structural, endogenous163. (d) all of the above164. (b) Time Reversal Test165. (b) 0 on 1



166. (c) Both a and b167. (c) Geometric Mean168. (b) Arithmetic Mean169. (b) Circular Test170. (c) sample171. (a) Unit Test172. (a) Fisher's Ideal Index173. (b) True174. (b) Time Reversal Test175. (a) to measure and compare prices176. (b) quantity indices177. (c) Circular Test178. (a) 179. (a) (price in period t/base period price)(100)180. (c) aggregate price index181. (d) Laspeyres Index182. (b) Consumer Price Index183. (d) Producer Price Index184. (b) weighted aggregate price index185. (b) quantity index186. (c) Index of Industrial Production and Capacity Utilization187. (c) Ragnar Frisch188. (d) either exogenous or endogenous189. (c) formulation of null hypothesis190. (a) independent variable191. (d) constant through out192. (c) expected value193. (c) spatial194. (b) the relationship being estimated is identified195. (b) minimum variance196. (a) 1197. (a) standard deviation of the sampling distribution198. (b) small sample199. (b) double log model200. (a) The variance of the errors is not constant

iii sem. ba economics - core course - quantitative methods for economic analysis - 1

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